Complete question:
The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K
Answer:
TRUE
Explanation:
The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.
Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.
Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.
K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.
Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.
<span>The way that an emerging idea differs from that of a scientific consensus is that an emerging idea has not been tested repeatedly. What best describes an idea that has scientific consensus is that most , but not necessarily all, scientists agree with an idea.
Answer: A) An emerging idea has not been tested repeatedly.
I hope it helps, Regards.</span>
<span>The bottleneck effect is the cause of the sudden shift in the genetic information of the population. Due to the landslide, suddenly high number of the members of the main population died, and this caused genetic drift for reducing the variation in the existing generation, which is now widely different from the original one.</span><span />
Answer:
Human milk oligosaccharides act as a soluble decoy receptors which is responsible for the blockage of bonds between enteric pathogens and epithelial cells which helps in reducing the risk of infection caused by retrovirus.
Explanation:
Human milk oligosaccharides are the sugar molecules which cannot be digested by the body of newly born baby. These sugar molecules remove the harmful viruses which are present in the gut of infant and the baby is save from infection.
I would believe tertiary consumer...I'm learning about the same subject...Just...less complicated...
